Microfiltration is a cleaning process that removes pollutants from a fluid (liquid and gas) by passage through a microporous membrane layer. A common microfiltration membrane pore size from 0.1 to 10 micrometers (um). Microfiltration is significantly different from reverse osmosis and nanofiltration, because these techniques as a means of pressure to force the water at low pressure to go high pressure. Microfiltration can be a print job, but it is not necessaryto include printing.
Designed by Professor Richard Adolf Zsigmondy at the University of Goettingen, Germany, 1935, were commercially layer membrane filter from Sartorius GmbH has developed a few years later. Membrane filter while the application layer in the field of microbiology and in particular the evaluation of drinking water.
Further progress of the microfilters in the mid-1970 by the U.S. Food and Drug Administration conducted a prerequisite for non-textileSupply of filters are used in the production of injectable solutions. Microporous membranes are used by micro-electronics business as an essential component of water production. Membrane filters are widely applied in biotechnology programs and food and beverages in which the sterile product is required.
Gradually used in water treatment, which effectively eliminates most pathogens and pollutants such as Giardia lamblia cysts, Cryptosporidium oocysts andbacteria significantly. For this application, the filter should be 0.2 or less valued. For minerals and bottlers of water, the general format used cartridge filter elements are typically made of polyethersulfone (PES) was established media. This medium is asymmetric with larger pores on the outer side and smaller pores within the filter material.
Microfiltration membranes were the first municipal water treatment market in 1987 and published in the first place for the water usedwere quite easy to handle. These were cold clear spring waters that are susceptible to microbial contamination. Low pressure membranes were selected to get rid of turbidity and pathogens without chemical conditioning peaks.
As a low-pressure membranes approval and acceptance of improved customer started to complicate water technology, where more and more substances mixed organic solids are present. Some of these waters required chemical pretreatment, such asChlorination. These changes in water quality induced changes in low-pressure membrane technology. New solutions and processes have been issued to deal with higher content of solids and chemical compatibility.
Process: The micro-filtration is the process of filtration using a micron filter size. The filter systems can be designed in a configuration of a submersible or pressure vessel. You worthless fibers, flat sheet, tubular, coiled, hollow fiber good or to affect the track. These filtersare permeable and allow water, monovalent species (Na +, Cl-), a mixture of organic matter, colloids and viruses, allowing small, but not particles, deposits, algae or bacteria through large.
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